A kangaroo court is a form of public trial that is, from the outset, an inside sham as the outcome is fully known before the trial begins.

Generally, kangaroo courts will limit the defendant's rights to witnesses, limit his time with his attorneys, provide him with inept attorneys (in situations where the state provides the attorney), or generally deny him the civil rights of due process.

Trials in which a regime rids itself of associates who have become inconvenient, such as Josef Stalin's Great Purge of the Soviet Union's Communist Party in the late 1930s (the "Moscow Trials").

Most every trial against a black man in the South from 1900-1960s (unless you were Lead Belly).

From the opposite direction in the same time and place, in the very rare case that a white person was actually on trial for lynching, their acquittal was never in question, especially when there was enough evidence to find the defendant guilty beyond a reasonable doubt.

The so-called Cadaver Synod, in which the Pope put his dead predecessor on trial.

Just like The Boy Who Cried Wolf, the existence of known show trials, like the Moscow Trials, will cloud the external view of all trials within closed societies. In the case of the Soviet Union's 1949 Khabarovsk trial of Japanese war criminals from Unit 731, real criminals were tried on real charges and convicted.[1] At the time, the United States government successfully portrayed the Khabarovsk trial as a show trial, though it was known not to be, in an attempt to thwart further prosecutions at the Tokyo War Crimes Tribunal (because they wanted to recruit surviving 731 members). Later evidence has shown that the report on the trial was almost completely factual.[2][3]